A better suggestion, from my long experience with amateur radio and dealing with hefty-amperage DC that it calls for coupled with quick, goof-proof, and sturdy gear requisites, would be to look at something we use called Anderson PowerPoles. Anderson Power Products sells direct via https://www.andersonpower.com/us/en.html , although their online catalog is rather new and lacks a lot of images. You can, however, have a better look at these and at tools for using them via DX Engineering: https://www.dxengineering.com/search/brand/anderson-power-products?autoview=SKU These provide DC connectivity that's sturdy, nearly-foolproof, and very beefy...way beyond normal Eurorack spec hardware, which is very much a good thing. While DX Engineering tends to offer only the inline versions, Anderson should also have some bulkhead versions available that would function nicely on a Eurorack panel. Plus, they come in color-coded sleeves, so you can easily use red for your +, black for -, and put your ground on a green connection for super-easy ID.
Honestly, these are THE way to deal with DC...very rugged, field-tested, and no possible way to confuse connections. I wish they were the standard in Eurorack.